[dart2wasm] Map the start of synchronous closures The start instructions of members, constructors and async closures are mapped to their function node offsets, but not the start of synchronous closures. The result was that instructions of the preamble had no source position. The closure creation and closure entry currently have the same position (for both synchronous and async function expressions). Now they are consistent, but we might want to later change the entry of both to be distinct from the allocation, e.g. the arrow or body block. Change-Id: I613d2c60b635d05b0044f1bc433e34d88f0d6ab7 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/575380 Commit-Queue: Stephen Adams <sra@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>
Dart is:
Approachable: Develop with a strongly typed programming language that is consistent, concise, and offers modern language features like null safety and patterns.
Portable: Compile to ARM, x64, or RISC-V machine code for mobile, desktop, and backend. Compile to JavaScript or WebAssembly for the web.
Productive: Make changes iteratively: use hot reload to see the result instantly in your running app. Diagnose app issues using DevTools.
Dart's flexible compiler technology lets you run Dart code in different ways, depending on your target platform and goals:
Dart Native: For programs targeting devices (mobile, desktop, server, and more), Dart Native includes both a Dart VM with JIT (just-in-time) compilation and an AOT (ahead-of-time) compiler for producing machine code.
Dart Web: For programs targeting the web, Dart Web includes both a development time compiler (dartdevc) and a production time compiler (dart2js).
Dart is free and open source.
See LICENSE and PATENT_GRANT.
Visit dart.dev to learn more about the language, tools, and to find codelabs.
Browse pub.dev for more packages and libraries contributed by the community and the Dart team.
Our API reference documentation is published at api.dart.dev, based on the stable release. (We also publish docs from our beta and dev channels, as well as from the primary development branch).
See the contribution guide for details.
If you want to build Dart yourself, here is a guide to getting the source, preparing your machine to build the SDK, and building.
There are more documents in our repo at docs.
Future plans for Dart are included in the combined Dart and Flutter roadmap on the Flutter wiki.